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Forest Sciences Commons

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Full-Text Articles in Forest Sciences

The Photosynthetic Response Of Northern Red Oak (Quercus Rubra L.) And American Chestnut (Castanea Dentata (Marsh.) Borkh) Under Varying Light Intensity And Weed Competition, Pedro Vitor P. Pereira, Jennifer M. Lesko, Douglass F. Jacobs Dr. Aug 2015

The Photosynthetic Response Of Northern Red Oak (Quercus Rubra L.) And American Chestnut (Castanea Dentata (Marsh.) Borkh) Under Varying Light Intensity And Weed Competition, Pedro Vitor P. Pereira, Jennifer M. Lesko, Douglass F. Jacobs Dr.

The Summer Undergraduate Research Fellowship (SURF) Symposium

Although widely distributed across Indiana and the United States Midwest, conifer plantations consist largely of non-native species that are of no value to the state’s forest products industry. This project’s goal is to develop science-based protocols and specific silvicultural prescriptions for successfully converting conifer plantations to higher value native hardwoods. Quantifying photosynthesis rate in a plant is an important tool to help us discern the best methods for implementing conifer conversion. Seedlings from two different native species, northern red oak (Quercus rubra L.) and American chestnut (Castanea dentata (Marsh.) Borkh), were distributed among three different silvicultural …


Use Of Plastic Bottles As An Alternative Container Type For Propagation Of Forest Tree Seedlings In Restoration Programs, Safiullah Khurram Apr 2015

Use Of Plastic Bottles As An Alternative Container Type For Propagation Of Forest Tree Seedlings In Restoration Programs, Safiullah Khurram

Open Access Theses

Deforestation and forest degradation is a global issue, especially in poor and developing regions of the world. In order to combat deforestation it is critical to enhance the productivity of forest restoration operations, which often involve planting of nursery-grown forest tree seedlings. Production of low quality stock types with deformed and spiraled root systems is a significant issue hindering successful restoration programs. Polybags (i.e., small plastic bags) are a common container type for seedling propagation in developing countries. However, polybags produce seedlings with spiraled and deformed root systems that reduce outplanting survival and performance. Use of discarded plastic water bottles …


Subsidizing Carbon Sequestration Via Forestry In Maryland: A Cost-Benefit Assessment, Rachel C. Hettich Apr 2015

Subsidizing Carbon Sequestration Via Forestry In Maryland: A Cost-Benefit Assessment, Rachel C. Hettich

Open Access Theses

Carbon sequestration by forestry is one way to mitigate climate change, and policy incentives are in place to encourage private investment in forestry. State and federal forestry cost-share programs subsidize the establishment of trees and the improvement of existing forested land. The objective of this research was to determine the effectiveness of such programs in Maryland and to compare the monetized benefits from permanently sequestered carbon with the current subsidies. To meet this objective, private and social cost-benefit analyses were conducted for three forestry investment scenarios in Maryland that coincide with the main cost-share programs available there. Sensitivity analysis considered …


Ancient Humans Influenced The Current Spatial Genetic Structure Of Common Walnut Populations In Asia, Paola Pollegioni, Keith E. Woeste, Francesca Chiocchini, Stefano Del Lungo, Irene Olimpieri, Virginia Tortolano, Jo R. Clark, Gabriel E. Hemery, Sergio P. Mapelli, Maria Emilia Malvolti Jan 2015

Ancient Humans Influenced The Current Spatial Genetic Structure Of Common Walnut Populations In Asia, Paola Pollegioni, Keith E. Woeste, Francesca Chiocchini, Stefano Del Lungo, Irene Olimpieri, Virginia Tortolano, Jo R. Clark, Gabriel E. Hemery, Sergio P. Mapelli, Maria Emilia Malvolti

Department of Forestry & Natural Resources Faculty Publications

Common walnut (Juglans regia L) is an economically important species cultivated worldwide for its wood and nuts. It is generally accepted that J. regia survived and grew spontaneously in almost completely isolated stands in its Asian native range after the Last Glacial Maximum. Despite its natural geographic isolation, J. regia evolved over many centuries under the influence of human management and exploitation. We evaluated the hypothesis that the current distribution of natural genetic resources of common walnut in Asia is, at least in part, the product of ancient anthropogenic dispersal, human cultural interactions, and afforestation. Genetic analysis combined with ethno-linguistic …


Assessing The Permeability Of Landscape Features To Animal Movement: Using Genetic Structure To Infer Functional Connectivity, Sarah J. Anderson, Elizabeth M. Kierepka, Robert K. Swihart, Emily K. Latch Jan 2015

Assessing The Permeability Of Landscape Features To Animal Movement: Using Genetic Structure To Infer Functional Connectivity, Sarah J. Anderson, Elizabeth M. Kierepka, Robert K. Swihart, Emily K. Latch

Department of Forestry & Natural Resources Faculty Publications

Human-altered environments often challenge native species with a complex spatial distribution of resources. Hostile landscape features can inhibit animal movement (i.e., genetic exchange), while other landscape attributes facilitate gene flow. The genetic attributes of organisms inhabiting such complex environments can reveal the legacy of their movements through the landscape. Thus, by evaluating landscape attributes within the context of genetic connectivity of organisms within the landscape, we can elucidate how a species has coped with the enhanced complexity of human altered environments. In this research, we utilized genetic data from eastern chipmunks (Tamias striatus ) in conjunction with spatially explicit habitat …